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Laboratories, <br />Environmental Testing Laboratory Since 1949 <br />haw Reported: 02/04/2013 14:45 <br />180 Promenade Circle, Suite 320 Project: North County LF, SJ County <br />Sacramento, CA 95834 Project Number. 139874 Qtrly Leachate <br />Project Manager: Sheila Richgels <br />Water Analysis(General Chemistry) <br />Quality Control Repo - Precision & Accuracy <br />Control Limits <br />Source Source Spike Percent Percent Lab <br />:onstituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals <br />QC Batch ID: BWA1610 <br />I Used client sample: <br />N <br />Chloride <br />DUP 1301610-01 <br />90.360 <br />82.658 <br />mg/L <br />8.9 <br />10 <br />MS 1301610-01 <br />90.360 <br />186.23 <br />101.01 <br />mg/L <br />94.9 <br />80-120 <br />MSD 1301610-01 <br />90.360 <br />186.18 <br />101.01 <br />mg/L <br />0.0 <br />94.9 <br />10 <br />80-120 <br />Nitrate as N <br />DUP 1301610-01 <br />24.460 <br />24.098 <br />mg/L <br />1.5 <br />10 <br />MS 1301610-01 <br />24.460 <br />34.012 <br />10.101 <br />mg/L <br />94.6 <br />80-120 <br />MSD 1301610-01 <br />24.460 <br />34.018 <br />10.101 <br />mg/L <br />0.0 <br />94.6 <br />10 <br />80-120 <br />Sulfate <br />DUP 1301610-01 <br />35.450 <br />32.360 <br />mg/L <br />9.1 <br />10 <br />MS 1301610-01 <br />35.450 <br />234.49 <br />202.02 <br />mg/L <br />98.5 <br />80-120 <br />MSD 1301610-01 <br />35.450 <br />232.51 <br />202.02 <br />mg/L <br />0.9 <br />97.5 <br />10 <br />80-120 <br />QC Batch ID: BWA166O <br />Used client sample: <br />N <br />Total Dissolved Solids @ 180 C <br />DUP 1301610-01 <br />925.00 <br />930.00 <br />mg/L <br />0.5 <br />10 <br />Qatch ID: BWA1683 <br />Used client sample: <br />N <br />orrbonate <br />DUP 1301609-07 <br />1066.6 <br />1074.7 <br />mg/L <br />0.8 <br />10 <br />Total Alkalinity as CaCO3 <br />DUP 1301609-07 <br />874.76 <br />881.46 <br />mg/L <br />0.8 <br />10 <br />QC Batch ID: BWA1792 <br />Used client sample: <br />Y - Description: <br />L-1, 01/23/2013 11:10 <br />Total Calcium <br />DUP 1301611-01 <br />331.14 <br />329.34 <br />mg/L <br />0.5 <br />20 <br />MS 1301611-01 <br />331.14 <br />353.13 <br />10.000 <br />mg/L <br />220 <br />75-125 <br />A03 <br />MSD 1301611-01 <br />331.14 <br />353.00 <br />10.000 <br />mg/L <br />0.0 <br />219 <br />20 <br />75-125 <br />A03 <br />Total Magnesium <br />DUP 1301611-01 <br />158.20 <br />156.31 <br />mg/L <br />1.2 <br />20 <br />MS 1301611-01 <br />158.20 <br />171.15 <br />10.000 <br />mg/L <br />130 <br />75-125 <br />A03 <br />MSD 1301611-01 <br />158.20 <br />171.16 <br />10.000 <br />mg/L <br />0.0 <br />130 <br />20 <br />75-125 <br />A03 <br />Total Sodium <br />DUP 1301611-01 <br />283.51 <br />281.59 <br />mg/L <br />0.7 <br />20 <br />MS 1301611-01 <br />283.51 <br />301.77 <br />10.ODO <br />mg/L <br />183 <br />75-125 <br />A03 <br />MSD 1301611-01 <br />283.51 <br />302.71 <br />10.000 <br />mg/L <br />0.3 <br />192 <br />20 <br />75-125 <br />A03 <br />Total Potassium <br />DUP 1301611-01 <br />3.1551 <br />3.1292 <br />mg/L <br />0.8 <br />20 <br />MS 1301611-01 <br />3.1551 <br />14.219 <br />10.000 <br />mg/L <br />111 <br />75-125 <br />MSD 1301611-01 <br />3.1551 <br />14.350 <br />10.000 <br />mg/L <br />0.9 <br />112 <br />20 <br />75-125 <br />QC Batch ID: BWA2068 <br />Used client sample: <br />N <br />Chemical Oxygen Demand <br />DUP 1301609-06 <br />39.039 <br />36.803 <br />mg 0211- <br />5.9 <br />20 <br />MS 1301609-06 <br />39.039 <br />776.63 <br />750.00 <br />mg O2/L <br />98.3 <br />80-120 <br />MSD 1301609-06 <br />39.039 <br />783.34 <br />750.00 <br />mg 02/1- <br />0.9 <br />99.2 <br />20 <br />80-120 <br />QC Batch ID: BWA2060 <br />Used client sample: <br />N <br />Chemical Oxygen Demand <br />DUP 1301605-02 <br />325.14 <br />322.90 <br />mg 02/1- <br />0.7 <br />20 <br />MS 1301605-02 <br />325.14 <br />1024.7 <br />750.00 <br />mg 02/1- <br />93.3 <br />80-120 <br />MSD 1301605-02 <br />325.14 <br />1020.3 <br />750.00 <br />mg 02/1- <br />0.4 <br />92.7 <br />20 <br />80-120 <br />• <br />The results in this report apply to the samples analyzed in accordance with the chain of custody document This analytical report must be reproduced in its entirety. <br />All results Iisted in this report are for the exclusive use of the submitting <br />party. BC Laboratories, lot, assumes no responsibility for report alteration, separation, detachment or third party interpretation <br />4100 Atlas Court Bakersfield, CA 93308 <br />(661) 32713911 FAX (661) <br />327-1918 <br />www.bdabs.com <br />Page 25 of 26 <br />